SUMMER HOLLOW LN over UNNAMED STREAM (Route: 0)
Num:200000HO0276030x
Open: no restriction [A]
Built: 1972, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Steel [3] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]

Bridge Dimensions
Length: 7.9 m = 25.9 ft
Main Spans: 0 at 3.4 m = 11.2 ft
Approach Spans: 0
Skew: 11
Width, Roadway: 0 m = 0.0 ft (2 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Howard County [027], Maryland [24]
Owned by County Highway Agency [02], DOT District: 7
1/8 Mi S of MD 108

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design:
Operating: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])
Inventory: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: N/A [N]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: February 2020 [0220] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 500 (2016) and Trucks: 2%
Future ADT: 500 (In 2037 )

PARK ACCESS ROAD over STREAM (Route: 0)
Num:3130001P0000000x
Open: no restriction [A]
Built: 1985, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Wood or timber [7] Slab [01]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface:

Bridge Dimensions
Length: 6.4 m = 21.0 ft
Main Spans: 1 at 5.8 m = 19.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 3.7 m = 12.1 ft (1 Lanes) and Out-To-Out: 4.1 m = 13.5 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Frederick County [021], Maryland [24]
Owned by National Park Service [66], DOT District: 0
0.15 MILES FROM MD ROUTE

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 52.6 metric ton = 57.9 tons (Allowable Stress(AS) [2])
Inventory: 39 metric ton = 42.9 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 1999 [1099] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 60 (2007) and Trucks: 1%
Future ADT: 66 (In 2027 )

THUNDER HILL ROAD over UNNAMED STREAM (Route: 0)
Num:200000HO0275030x
Open: no restriction [A]
Built: 1972, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]

Bridge Dimensions
Length: 7.3 m = 24.0 ft
Main Spans: 0 at 1.5 m = 4.9 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 0 m = 0.0 ft (2 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Howard County [027], Maryland [24]
Owned by County Highway Agency [02], DOT District: 7
1/8 MI S of MD 108

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design:
Operating: 32.7 metric ton = 36.0 tons ()
Inventory: 32.7 metric ton = 36.0 tons ()

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: N/A [N]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: February 2020 [0220] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 200 (2016) and Trucks: 2%
Future ADT: 200 (In 2037 )